Guarded vent fitting



April 21, 1942.

' H. LONG GUARDED VENT FITTING Filed Nov. 20, 1939 lY/I/J v i Il Y 5 E N W W W T 1m Wm W m m .z a Q Referring to the drawing:-

Patented Apr. 21, 1942 I 1 GUARDEDVENT FITTING.

QTnugh Lang, LosAngeles,Calif. 3 Application November 20,1939, seriarno aoazve This invention relatesto a fitting connection with plumbing installations.

Draineare commonly installed for connection,

through a trap if desired, toa pipe or conduit that disposes of the waste, either through a sewer 'or other; disposal means. It is required that an upwardly directed vehtpipe-be installed;

above the pipe or conduit." Toeffect this, use is made o'f avent fitting, that joins the drain pipe to the downwardly directed soil pipe, and also provides a support for the vent pipe. j Such vent fittings as commonly installed, permit rapid clogging of the opening to the vent pipe with greasy material carried past the open ing by the waste water. This clogging would interfere very materially with the venting func to retard the accumulation of, such material in the'passagesleading to the ventpipe.

It may be necessary at times to insert a ible fsnakef through the drain and into the soil pipe. for opening a clogged pipe. Whenthe snake passesthrough the vent fitting, it is apt to be'deiiected thereby and proceedsv upwardly through the vent pipe, instead of downwardly through "the soil'pipe, as intended. It is still another'obj ect of thisyinvention to obviate such occurrences. l

pipe from the dra-inffand to retard the. entry of suchrnatter upwardly into the vent pipe.

Theselobjectsare accomplished by. the pro vision of a fitting of definite configuration. A1-

f thoughsu-ch a fitting may be of especial utility in connection with ventpipes for use in the -disto promote smoothness offlowof'iiuids around bends and through the fittings; as for examme in steamer water pipes.

This invention posjsesses many other advan' tages, and has other objects which may be made moreeasily apparnt from a consideration of several embodiments of the invention. For this purpose there are shown a few forms in the drawing a-ccom-panyingand forming part of the presentspecification These "forms will now be described detail, illustrating the general principles of the inverition; but it is to beunderstood that this detailed description is not to be taken in a limiting sense, since the scope of the invention is best defined by the appended claims.

Figure ;1 is asectional View of anembodiment of theinvention;

ra is aiurther object of this invention to facilitate the new of "waste matter into the soil.

collect in the bottom of the vent pipe 1, thereby form of the invention.

aoi i s. (01. 2 5 -210) owne in a i Fig. 2"is a sectional view taken along plane 2-2 of Fig.1; 1

Fig. 3 is'a sectional view 33of Fig. 1; and i w Fig.- 4 is a view similar to taken along plane Figfl, of a modified In the embodiment illustrated inFigs. 1,"'2 nd 3, the vent fitting body I is shown as having a plurality of openings into which the various pipe or conduit elements maybe joined. These opene ings-in' the present instance may be conven iently formed by thethreaded extensions 2, 3

and4. The threaded extensions 2 and 4 may be in virtual alinement at opposite ends of the hollowvent fitting body I. Of course, provisions other-than threads; for attaching the conduits in fluid tight manner in theopenings maybe provided. The extension 3 is arranged' s o as to be intermediate and transverse to the extensions 2 and 4. Into it may be attached the conduit '5, thatmay lead from adrain or trap. l y

The waste matter passing through conduit or pipe te intended *to pass into the body I, and

downwardly through the downwardly ;-directed soil pipe'or co'nduit'fi, which may connectto an appropriate drainage sewer. The upwardly directed passage or conduit 'l is intended inthis instance were as avent pipe, necessary in off wastegases. M g

It has been "found that in ordinary vent fittings of this character; greasy waste matter may plumbing installations of this character, to carry reducing its effectiveness and interfering with its function. Furthermore, in the event that it F 1 may be necessary to'insert a snakethrough con duit S -ancl into conduit 6' for clearing the waste passages, the snake may be deflected upwardly into the vent pipe] instead. of downwardly into the soil pipe 6. -By appropriate configuration of the vent fitting body I, the danger oiclog ging of the vent pipe I is obviated, and there is greater assurance that: any cleaning medium, I such as a snake, will be properly directed down wardlyinto theconduit 6f. i

For this purpose thewallil opposite the open} ing formed in extension 3 is shown as having a concave inner su'rface-8. The waste from con-- duit Eimpinges against this concave surfaces and is directed by thisconcavity downwardly in the general direction illustrated by the ,arrows 9 and I0.

The upward flow of the waste is prevented by a deflector formed at the upper end of the surface 8. as by the aid of a ridge or projection ll (Figs. 1 and 3). This ridge or projection II is joined to the concave surface 8 by an intervening deflecting surface I2, which may be concave or flat as desired. As shown most clearly in Fig. 3, this deflector ridge I I extends arcuately around the body I for about 180 degrees, decreasing in depth as the ends of the ridge are approached. The deflecting surface I2 is located immediately below the conduit I. The edge of ridge II is formed in a point by the meeting of the deflecting surface I2 and the sloping surface I3, leading upwardly toward the bottom of conduit I. This sloping surface I3, together with the opposite sloping surface I4 on the body I, defines a substantially round upwardly sloping passage I5, leading from the inner end of conduit 5 to the lower end of conduit I.

Due to this slanting passageway I5 and the ridge II, waste matter entering the body I through conduit5 will find its most ready passage to be in a downward direction through the pipe 6. The Waste impinging upon the surface 8 will not spatter upwardly but will be deflected downwardly in the proper direction as indicated by arrows 9 and I0. 1

In the form of the invention illustrated in Fig. 4, the vent fitting body I6 is shown as adapted to accommodate a pair of oppositely directed drain. pipes or conduits I! and I8, to form a common fitting for both conduits. These drain pipes or conduits I1 and I8 are arranged transversely to the direction of the vent pipe I9 and the soil pipe 29. In this instance, an intermediate wall 2| is illustrated, forming the deflecting surfaces: 22 and 23 respectively opposite the conduitsI'I and I8. These surfaces 22 and 23 slope so as to deflect waste matter entering these conduits II and I8 downwardly into the pipe ZUr-Immediately above the transverse wall 2I, and formed as continuations of surfaces 22 and 23 are the deflecting surfaces 24 and 25. These deflecting surfaces operate in a manner similar to the deflecting surface I2 in the form illustrated in Fig-.;;1. They are formed below the circular ridges-26 and- 21; each of these ridges has an upward slant, meeting at an acute apex 28 centrally of the axis of the vent pipe I9. These sloping surfaces 26 and 21 also form with the walls ofbody I6, upwardly directed slanting passageways 29 and 38, respectively between conduit I! and vent I9,-. and between conduit I8 and vent I9.

The-manner of operation of this form of the fitting. issubstantially thesarne as that described in connection with the fitting illustrated in Fig. 1. The waste entering through the conduits 'I'I, I8 may impinge upon the surfaces 22 and 23. This waste isthereby deflected to travel along the direction of the arrows 3l, 32. At the same time the surfaces 24 and 25 protect the vent pipe I9 from accumulation of foreign matter.

1 What is claimed is:

, 1. In a hollow fitting having openings for connection to a pair of oppositely directed conduits as well as to another conduit that is intended to be angularlydisplaced from said pair, a wall forming a surface in said fitting opposite the opening for said other conduit, said surface hav ing. a sloping configuration extending substantially across the opening of said other conduit, to guide substantially all of the liquid entering from said other conduit into one of the pair of oppositely directed conduits and away from the other-of the pair, and a ridge extending partly around the said surface and opposite the edge of P said opening, and overhanging said surface, to prevent separation of the stream of liquid between said pair.

2. In a hollow fitting having oppositely directed openings as well as another opening intermediate said oppositely directed openings, at Wall having a surface opposite said intermediate opening, said surface having a continuous slope that extends substantially. across the said intermediate opening, to deflect substantially all of the liquid entering through the said intermediate opening, into one of said oppositely directed openings, and away from the other of said oppositely directed openings, and a deflector joining the top of the continuously sloping surface and below said other of the oppositely directed openings, the deflector and said surface thus forming a ridge at the top of said surface.

3. In a hollow fitting having oppositely directed openings as well as another opening intermediate saidoppositely directed openings, a wall for the fitting having an interior. surface opposite said intermediate opening, said interior surface being concave for directing flow of fluid to one of saidoppositely directed openings, and a ridge on said surface and below-the otherof said oppositely directed openings, said ridge forming a deflecting surface partly around the axis of said other oppositely directed opening and forming a continuationof-said concave surface, said ridge also forming a sloping surfaceextending toward the said other oppositely directed opening, the said sloping surface forming the deflecting surface in an acute angle. l

4. In a hollow fitting having oppositely directed openings as well as another opening intermediate said oppositely directed openings, a wall for the fittinghaving a surface opposed to said intermediate opening, said surface extending substantially across the said intermediate opening, for guiding substantially all of the liquid from said intermediate opening to one of said oppositely directed openings, and a ridge on said surface and below the other of said oppositely directed openings, said ridge forming a deflecting surface as a continuation'of said wall surface, said ridge also forming a sloping surface extending toward the said other oppositely directed opening, the said sloping surface joining the deflecting surface in an acute angle.

5. In a hollow fitting having oppositely directed openingsas well as another opening intermediate said oppositely directed openings, a wall for the fitting having a surface opposed to said intermediate opening for guiding fluid from said intermediate opening to one of said oppositely directed openings, a ridge on said surface and below the other of said opopsitely directed openings, said ridge forming a-deflecting surface as a continuation of said wall surface, said ridge also forming a sloping surface extending toward the said other oppositely directed opening, the said sloping surface of the ridge joining the deflecting surface in an acute angle, and a wall having an interior surface forming with said sloping surface of the ridge, a sloping round conduit between the intermediate opening and said other oppositely directed opening, said deflecting surface decreasing in width around the interior of said sloping conduit.

6. In a hollow fitting having a pair of oppositely directed openings as well as another pair of oppositely directed openings along a line transverse to the first pair, a wall within said fitting and interposed between said other pair of openings, said wall having opposite sides for guiding fluid respectively from bothof said other 8. In a hollow fitting having a pair of oppositely directed openings as well as another pair pair of openings toxone of the first pair of oppositely directed openings, anda projection on said wall for deflecting fluid from the other of i said first pair of oppositely directed openings.

7. In a hollow fitting having a pairof oppositely directed openings as well as another pair of oppositely directed openings along a line transverse to the first pair, a wall within said fitting and interposed between said other pair of openings, said wall having opposite sides for guiding fluid respectively from both of said other pair of openings to one of thefirst pair of oppositely directed openings, and a ridge on said wall and below the other of said first pair of oppositelydirected openings, said ridge forming defleeting surfaces as continuations of the opposite wall surfaces, as well as a. pair of oppositely sloping surfaces extending toward the said other of the first pair of oppositely directed openings, the said sloping surfaces meetingin an apex below said other of the first pair of oppositely directed openings, and joining the deflecting surfaces in an acute angle.

of oppositely directed openings along a line transverse to the first pair, a wall within said fitting and interposed between said other pair of openings, said wall having opposite sides for guiding fiuid-respectivelyffrom both of said other pair of openings to one of the first pair of oppositely directed openings, and a ridge on said wall and below the other of said first pair of oppositely directed openings, said ridge forming deflecting surfaces as continuations of the oppositewall surfaces, as well as a pair of oppositely sloping surfaces extending toward the said other of the first pair of oppositely directed openings, the said sloping-surfaces meeting in an apex below said other of the first pair of oppositely directed openings, and joining the deflecting surfaces in an acute angle, said fitting having walls with interior surfaces forming with said sloping surfaces, sloping round conduits respectively between the said other pair of oppositely directed openings, and said other of the first pair of open HUGH LONG. 

